---
title: "mova-seaspider-main — Mova code model"
description: "Mova code model of tools/seaspider/src/main.rs: components with their labels, obernants and the model text."
url: "https://groupants.elamur.ai/free/en/mova/tools/seaspider/src/main.rs.groupant/"
---
Elamur: [Mova](https://md.mova.elamur.ai/free/en/) · [Dictionary](https://md.dictionary.elamur.ai/free/en/) · [Research](https://md.research.elamur.ai/free/en/) · **Groupants**

This page as HTML: <https://groupants.elamur.ai/free/en/mova/tools/seaspider/src/main.rs.groupant/>

# mova-seaspider-main

The groupant beside tools/seaspider/src/main.rs in the Mova repository: what the code computes, what it never does, how to go back from its outputs, its invariants, cost and checks.

## Facts

- **kind:** groupant
- **status:** partial source bound model
- **source:** [`tools/seaspider/src/main.rs`](https://github.com/ElamurAI/mova-free/blob/main/tools/seaspider/src/main.rs)
- **source SHA-256:** `b3a5d663164fb756…`
- **repository folder:** [`tools/seaspider/src/main.rs.groupant`](https://github.com/ElamurAI/mova-free/tree/main/tools/seaspider/src/main.rs.groupant)
- **repository commit:** `48f2e6f74146`

> **Implementation material.** A Mova code model describes this code at one source revision: partial models, finite checks and their stated scope. It is not a reviewed general exposition, and its labels are shown as written, never raised.

## Components

| component | label | where |
|---|---|---|
| **approximant** | partial | [Forward approximant](#forward-approximant) |
| **ast** | partial | `syntax.json` |
| **composition** | partial | [Composition](#composition) |
| **cost** | partial | [Cost](#cost) |
| **descriptant** | present | [Descriptant](#descriptant) |
| **invariant** | partial | [Invariant](#invariant) |
| **tests** | finite evidence | [tests](#tests) |

## Obernants

The typed relations around the forward model: the behaviour complement (what the code never does), the reverse reconstruction (every input compatible with an output) and specialised views.

| id | type | label | where |
|---|---|---|---|
| `behavior_complement` | behavior_complement | partial source derived model | [behavior_complement](#behavior-complement) |
| `reverse_reconstruction` | reverse_reconstruction | partial source derived model | [reverse_reconstruction](#reverse-reconstruction) |

## Model text


### model

## mova-seaspider-main

### Descriptant

seaspider CLI: fetch CONFIG QUEUE, get STORE URL|sha256:HEX, robots CONFIG URL, stats STORE. Source: `tools/seaspider/src/main.rs`.

### Forward approximant

Match exact argument shapes; fetch/robots load the config and run a current-thread tokio runtime; get writes the body to stdout and a one-line summary to stderr; stats prints JSON; anything else prints usage and exits 1.

### Invariant

Unknown commands or argument counts have no effect beyond the usage message and a non-zero exit.

### Cost

O(1) dispatch plus the chosen operation.

### Composition

Executable over crawl and store.

### behavior_complement

No flags, no daemon mode, no network without a config. Counterexample: 'seaspider fetch' alone exits non-zero (links_file_follow_mode_and_cli). Evidence status: source-derived model with finite checks, not a proof.

### reverse_reconstruction

The printed summary or body identifies the operation's result; the configuration and queue are not recoverable from output. No unique inverse is claimed.

### Epoch 2026-11-04 (English)

2026-11-04: `serve CONFIG DEPUTY_CONFIG SOCKET` and `ask SOCKET ID [urgent]` (prints the English answer, then the JSON reply).

### Epoch 2026-11-04 (Sea Spider live: singleton and callers)

Epoch 2026-11-04: fetch and robots take the singleton lease; a refused serve/fetch/robots prints the holder and exits 5 (EXIT_RUNNING); `ask --from CALLER`.

### tests

#### Checks

End-to-end: get, stats and a usage error through the built binary.

Command: cargo test --manifest-path tools/seaspider/Cargo.toml --offline --locked (27 unit + 9 end-to-end tests against a local 127.0.0.1 HTTP server; two identical runs on 2026-11-04).
These are finite fixtures; the only live run was the 2026-11-04 smoke against the project's own site.

2026-11-04 (English): cargo test --manifest-path tools/seaspider/Cargo.toml --offline --locked with MOVA_OCTOPUS_TEST_MODEL=$MOVA_DATA/download/0/0.4/en.bin (31 unit + 9 end-to-end + 2 English tests on a local 127.0.0.1 server; two identical runs on 2026-11-04). Negative controls 2026-11-04: binding arguments to the first action instead of through the parse, allowing every robots decision, and ordering jobs by arrival only each turn the English tests red; restored afterwards.

2026-11-04: cargo test --manifest-path tools/seaspider/Cargo.toml --offline --locked with MOVA_OCTOPUS_TEST_MODEL=$MOVA_DATA/download/0/0.4/en.bin (34 unit + 9 end-to-end + 1 singleton CLI + 2 English tests; two identical runs on 2026-11-04) Negative controls 2026-11-04: a lock that always succeeds turns the singleton unit and CLI tests red; admitting every caller turns the served English test red (the Whale's fetch is queued); restored afterwards.